Compare numeric strings with leading zeros
th.douez at gmail.com
Thu Sep 3 23:56:57 EDT 2015
Well, nothing very dangerous here :)
>> if matchText( userTyping, myVeryStrongPassword) then ...
This was a direct answer to this thread:
"compare numeric strings with leading zeros" !
> I would caution against using matchText for this purpose,
> because the second
> parameter is treated by the function as a regular expression.
myVeryStrongPassword is a regular expression in a pure litteral form.
> For instance, matchText would return true if you were to reverse your
> example values:
Yes, the order of the parameters have a meaning, but this is true
for so much functions in LC. So, I don't get it :(
> In addition,
> since passwords are typically allowed to contain any character
Was not asked by the OP.
Ok then, so new rules here:)
> local userTyping = "5"
> local myVeryStrongPassword = "^5$"
If your password can contains any chars,
Just tell it to matchText():
my password can be any character and I don't want you to
interpret them in any ways!
enclose your myVeryStrongPassword by "\Q" & "\E" and it
will be interpreted as litteral characters.
> Since Ralph is looking to use this for password validation,
> I would throw in a case sensitivity check as well:
For this one, there is nothing special to do.
If it will be case insensitive you could add a prefix to the regex: (?i)
so the final matchText() solution is:
put "\Q^5$\E" into myVeryStrongPassword
if matchText( userTyping, myVeryStrongPassword ) then ...
Ok, now I'm waiting for what I've missed...
Have all a nice day or night.
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